From the mouths of babes... I think they say it best!

Mrs. Harju's Class, East Grand Rapids, Michigan

http://kidblog.org/Harju

Mrs. Smith's Class Tuscola, Illinois

http://kidblog.org/MrsSmiths4thGradeClass/

Mrs. Huntley's Kindergarten Class - Charlotte, Michigan

http://kidblog.org/4krichards/ - Location Unknown

http://kidblog.org/mrskolbertsclass/ -Location Unknown

And if those are not enough classrooms to get connected with have a look at more!

Another list of educators with Kidblogs